What is the primary focus of ASME B31.3?

The primary focus of ASME B31.3 is on process piping. This code provides guidelines for the design, materials, construction, and inspection of piping systems used in various process industries. This includes systems that transport fluids and gases, identifying proper practices and standards to ensure safety, reliability, and efficiency.

The code addresses critical factors such as the design pressure, temperature ratings, and the types of materials that are suitable for different applications. It also covers installation guidelines and required testing to verify that the integrity of the piping system is maintained throughout its service life. Thus, B31.3 serves as a comprehensive resource for engineers and inspectors dealing with the intricacies of process piping, emphasizing both functionality and safety in industrial applications.